The patch titled
spidernet: memory barrier
has been added to the -mm tree. Its filename is
spidernet-memory-barrier.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: spidernet: memory barrier
From: Linas Vepstas <linas@xxxxxxxxxxxxxx>
Add memory barrier to make sure that the rest of the RX descriptor state is
flushed to memory before we tell the hardware that its ready to go.
Signed-off-by: Linas Vepstas <linas@xxxxxxxxxxxxxx>
Cc: James K Lewis <jklewis@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/net/spider_net.c | 1 +
1 file changed, 1 insertion(+)
diff -puN drivers/net/spider_net.c~spidernet-memory-barrier drivers/net/spider_net.c
--- a/drivers/net/spider_net.c~spidernet-memory-barrier
+++ a/drivers/net/spider_net.c
@@ -389,6 +389,7 @@ spider_net_prepare_rx_descr(struct spide
card->spider_stats.rx_iommu_map_error++;
descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
} else {
+ wmb();
descr->dmac_cmd_status = SPIDER_NET_DESCR_CARDOWNED |
SPIDER_NET_DMAC_NOINTR_COMPLETE;
}
_
Patches currently in -mm which might be from linas@xxxxxxxxxxxxxx are
origin.patch
hvcs-char-driver-janitoring-move-block-of-code.patch
spidernet-dma-coalescing.patch
spidernet-add-net_ratelimit-to-suppress-long-output.patch
spidernet-rx-locking.patch
spidernet-refactor-rx-refill.patch
spidernet-rx-skb-mem-leak.patch
spidernet-another-skb-mem-leak.patch
spidernet-cleanup-return-codes.patch
spidernet-rx-refill.patch
spidernet-merge-error-branches.patch
spidernet-remove-unused-variable.patch
spidernet-rx-chain-tail.patch
spidernet-turn-rx-irq-back-on.patch
spidernet-memory-barrier.patch
spidernet-avoid-possible-rx-chain-corruption.patch
spidernet-rx-debugging-printout.patch
spidernet-rework-rx-linked-list.patch
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